<template>
  <section class="loginContainer">
    <div class="loginInner">
      <div class="login_header">
        <h2 class="login_logo">硅谷外卖</h2>
        <div class="login_header_title">
          <a href="javascript:;" :class="{on:loginType}" @click="switchLogin">短信登录</a>
          <a href="javascript:;" :class="{on:!loginType}" @click="switchLogin">密码登录</a>
        </div>
      </div>
      <div class="login_content">
        <form>
          <!--短信登录-->
          <div :class="{on:loginType}">
            <section class="login_message">
              <input type="tel" maxlength="11"
                     placeholder="手机号"
                     v-model="phone"
                     name="phone"
                     v-validate="{ required: true, regex: /^1\d{10}$/}"
              />
              <span style="color:red">{{errors.first('phone')}}</span>
              <!--点击发送验证码-->
              <button class="get_verification"
                      :disabled="!isphoneberRight || countDownTime>0"
                      :class="{right_phone_number:isphoneberRight}"
                      @click.prevent="sendCode"
              >{{countDownTime>0?`已发送${countDownTime}s`:'获取验证码'}}</button>
            </section>
            <section class="login_verification">
              <input type="tel"
                     maxlength="8"
                     placeholder="验证码"
                     name="VerifySMS"
                     v-validate="{ required: true, regex: /\d{6}$/}"
                     v-model="code"
                     @keyup.enter="logIn"
              >
              <span style="color:red">{{errors.first('VerifySMS')}}</span>
            </section>
            <section class="login_hint">
              温馨提示：未注册硅谷外卖帐号的手机号，登录时将自动注册，且代表已同意
              <a href="javascript:;">《用户服务协议》</a>
            </section>
          </div>
          <!--密码登录-->
          <div :class="{on:!loginType}">
            <section>
              <section class="login_message">
                <input type="tel"
                       maxlength="11"
                       placeholder="手机/邮箱/用户名"
                       name="Username"
                       v-validate="{ required: true, regex: /^1\d{10}$/}"
                       v-model="username"
                >
                <span style="color:red">{{errors.first('Username')}}</span>
              </section>
              <section class="login_verification">
                <input :type="!pwdStatus?'password':'text'"
                       maxlength="8"
                       placeholder="密码"
                       v-model="password"
                       name="Password"
                       v-validate="{ required: true, regex: /\d{6}$/}"
                >
                <span style="color:red">{{errors.first('Password')}}</span>
                <div class="switch_button"
                     :class="pwdStatus?'on':'off'"
                     @click="pwdStatus = !pwdStatus"
                >
                  <div class="switch_circle" :class="{on:pwdStatus}"></div>
                  <span class="switch_text">{{pwdStatus?'显示':'隐藏'}}</span>
                </div>
              </section>
              <section class="login_message">
                <input type="text"
                       maxlength="11"
                       placeholder="验证码"
                       name="Captcha"
                       v-validate="{ required: true, regex: /^.{4}$/}"
                       v-model="captcha"
                       @keyup.enter="logIn"
                >
                <span style="color:red">{{errors.first('Captcha')}}</span>
                <img class="get_verification"
                     src="http://localhost:5000/captcha"
                     alt="captcha"
                     ref="captcha"
                     @click="changeCaptcha"
                >
              </section>
            </section>
          </div>
          <button class="login_submit" @click.prevent="logIn">登录</button>
        </form>
        <a href="javascript:;" class="about_us">关于我们</a>
      </div>
      <a href="javascript:" class="go_back" @click="goBack">
        <i class="iconfont icon-jiantou2"></i>
      </a>
    </div>
  </section>
</template>

<script>
  import {reqSms,loginbyPwd,loginbySms} from 'api'
  import {RECEIVE_USERINFO} from '@/store/mutation-types'
  import {MessageBox,Toast} from 'mint-ui'
  export default {
    name: 'login',
    data(){
      return{
        loginType: true,
        //pwdlogin
        phone: '',
        code:'',
        countDownTime: 0,
        //smslogin
        username:'',
        password: '',
        captcha:'',
        pwdStatus: false,
      }
    },
    computed:{
      isphoneberRight(){
        return /^1\d{10}$/.test(this.phone)
      },
    },
    methods:{
      goBack(){
        this.$router.push('/profile')
      },
      switchLogin(){
        this.loginType = !this.loginType
      },
      async sendCode() {
        this.countDownTime = 30
        const cdtId = setInterval(()=>{
          this.countDownTime--
          if(this.countDownTime<=0){
            clearInterval(cdtId)
          }
        },1000)
        const sms = await reqSms(this.phone)
        if(sms.code===0){
          Toast('发送验证成功')
        }else{
          this.countDownTime = 0
          MessageBox.alert(sms.msg)
        }
      },
      changeCaptcha(){
        this.$refs.captcha.src = 'http://localhost:5000/captcha?time' + Date.now()
      },
      async logIn(){
        //先验证再登录
        //验证：
        let names ,loginAccess
        const {loginType,phone,code,username,password,captcha} = this
        if(loginType) {
          names = ['phone', 'VerifySMS']
        } else {
          names = ['Username', 'Password', 'Captcha']
        }
        const success = await this.$validator.validateAll(names)
        if(success){
          //用户填写的数据验证成功后，发送POST请求，让后台识别用户信息
          if(loginType){
            // console.log(phone,code)
            loginAccess = await loginbySms({phone,code})
            // console.log(loginAccess)
          }else{
            // console.log(username,password,captcha)
            loginAccess = await loginbyPwd({username,password,captcha})
            console.log(loginAccess)
          }
          if(loginAccess.code===0){
            const userinfo = loginAccess.data  //从后台拿到用户信息的请求体
            this.$store.commit(RECEIVE_USERINFO,userinfo) //把后台返回的用户信息存入vuex-state
            this.$router.replace('/profile') //跳转到用户中心
          }else{
            // console.log('Please try again')
            MessageBox.alert(loginAccess.msg)
          }
        }
      }
    }
  }
</script>

<style lang="stylus" rel="stylesheet/stylus" scoped>
  .loginContainer
    width 100%
    height 100%
    background #fff
    .loginInner
      padding-top 60px
      width 80%
      margin 0 auto
      .login_header
        .login_logo
          font-size 40px
          font-weight bold
          color #02a774
          text-align center
        .login_header_title
          padding-top 40px
          text-align center
          >a
            color #333
            font-size 14px
            padding-bottom 4px
            &:first-child
              margin-right 40px
            &.on
              color #02a774
              font-weight 700
              border-bottom 2px solid #02a774
      .login_content
        >form
          >div
            display none
            &.on
              display block
            input
              width 100%
              height 100%
              padding-left 10px
              box-sizing border-box
              border 1px solid #ddd
              border-radius 4px
              outline 0
              font 400 14px Arial
              &:focus
                border 1px solid #02a774
            .login_message
              position relative
              margin-top 16px
              height 48px
              font-size 14px
              background #fff
              .get_verification
                position absolute
                top 50%
                right 10px
                transform translateY(-50%)
                border 0
                color #ccc
                font-size 14px
                background transparent
                &.right_phone_number
                  color: black
            .login_verification
              position relative
              margin-top 16px
              height 48px
              font-size 14px
              background #fff
              .switch_button
                font-size 12px
                border 1px solid #ddd
                border-radius 8px
                transition background-color .3s,border-color .3s
                padding 0 6px
                width 30px
                height 16px
                line-height 16px
                color #fff
                position absolute
                top 50%
                right 10px
                transform translateY(-50%)
                &.off
                  background #fff
                  .switch_text
                    float right
                    color #ddd
                &.on
                  background #02a774
                >.switch_circle
                  position absolute
                  top -1px
                  left -1px
                  width 16px
                  height 16px
                  border 1px solid #ddd
                  border-radius 50%
                  background #fff
                  box-shadow 0 2px 4px 0 rgba(0,0,0,.1)
                  transition transform .3s
                  &.on
                    transform translateX(30px)
            .login_hint
              margin-top 12px
              color #999
              font-size 14px
              line-height 20px
              >a
                color #02a774
          .login_submit
            display block
            width 100%
            height 42px
            margin-top 30px
            border-radius 4px
            background #4cd96f
            color #fff
            text-align center
            font-size 16px
            line-height 42px
            border 0
        .about_us
          display block
          font-size 12px
          margin-top 20px
          text-align center
          color #999
      .go_back
        position absolute
        top 5px
        left 5px
        width 30px
        height 30px
        >.iconfont
          font-size 20px
          color #999

</style>
